Make gainmap parcelable.

Bug: 267215989
Test: android.graphics.cts.GainmapTest

Change-Id: I189f652f26f2f92e37afdc3f69ae7b7653d69bf0
diff --git a/libs/hwui/jni/ScopedParcel.h b/libs/hwui/jni/ScopedParcel.h
new file mode 100644
index 0000000..fd8d6a2
--- /dev/null
+++ b/libs/hwui/jni/ScopedParcel.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "SkData.h"
+
+#ifdef __ANDROID__  // Layoutlib does not support parcel
+#include <android-base/unique_fd.h>
+#include <android/binder_parcel.h>
+#include <android/binder_parcel_jni.h>
+#include <android/binder_parcel_platform.h>
+#include <cutils/ashmem.h>
+#include <renderthread/RenderProxy.h>
+
+class ScopedParcel {
+public:
+    explicit ScopedParcel(JNIEnv* env, jobject parcel) {
+        mParcel = AParcel_fromJavaParcel(env, parcel);
+    }
+
+    ~ScopedParcel() { AParcel_delete(mParcel); }
+
+    int32_t readInt32();
+
+    uint32_t readUint32();
+
+    float readFloat();
+
+    void writeInt32(int32_t value) { AParcel_writeInt32(mParcel, value); }
+
+    void writeUint32(uint32_t value) { AParcel_writeUint32(mParcel, value); }
+
+    void writeFloat(float value) { AParcel_writeFloat(mParcel, value); }
+
+    bool allowFds() const { return AParcel_getAllowFds(mParcel); }
+
+    std::optional<sk_sp<SkData>> readData();
+
+    void writeData(const std::optional<sk_sp<SkData>>& optData);
+
+    AParcel* get() { return mParcel; }
+
+private:
+    AParcel* mParcel;
+};
+
+enum class BlobType : int32_t {
+    IN_PLACE,
+    ASHMEM,
+};
+
+#endif  // __ANDROID__ // Layoutlib does not support parcel
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